Warm-Up Sets and the Pyramid System: How to Prepare for Heavy Lifts Without Wasting Energy

An evidence-based guide to efficient warm-ups and pyramid loading

You walk into the gym, load the barbell, and get ready for your first heavy set.

But something feels wrong.

The weight feels heavier than expected. Your movement feels stiff, and your technique isn’t as smooth as usual.

Could your warm-up be the missing piece?

Possibly. But there’s another side to the problem: warming up too much can leave you tired before the real workout even starts.

That’s where progressive pyramid loading comes in.

Instead of jumping straight to a heavy weight—or exhausting yourself with endless light repetitions—you gradually increase the load while reducing the number of reps.

The goal is to arrive at your first working set feeling prepared, confident, and ready to perform.

A useful coaching principle: Your warm-up should prepare you for the work, not become the work.

Let’s look at how the system works and what scientific research actually tells us.

1. What Are Warm-Up Sets?

Warm-up sets are lighter sets performed before your actual working sets.

They use the same exercise, or a closely related movement, to prepare you for the demands of heavier training.

For example, if your workout calls for three sets of six squats with 100 kg, going straight from standing around to lifting 100 kg might not be your best approach.

Instead, you can build up to that weight gradually.

A good warm-up can help you:

• Rehearse the movement and your lifting technique.

• Adjust to progressively heavier loads.

• Feel more physically and mentally prepared.

• Identify whether today’s planned weight feels appropriate.

• Potentially improve subsequent strength or repetition performance.

An important distinction: Warm-up sets are not automatically working sets. When performed easily and far from failure, they are primarily preparation—not the hard training volume you use to build muscle.

2. The Three Stages of an Effective Warm-Up

A practical warm-up can combine three elements: general warm-up, movement-specific preparation, and progressive loading. ^[1,2]

Stage 1: General Warm-Up

If you arrive cold or have been sitting, start with approximately 5–10 minutes of comfortable movement, such as walking, cycling, or an elliptical machine.

The goal is to increase body temperature without making yourself tired.

A slight feeling of warmth is a useful practical guide. You don’t need to turn this into a cardio workout.

A 2015 scientific review describes several potential benefits of warm-up, including temperature-related, metabolic, neural, and psychological effects. ^[4]

Stage 2: Dynamic Movement Preparation

Now prepare the movements you’ll actually use.

Before squats, you might include leg swings, a few controlled bodyweight squats, or ankle-mobility movements if needed.

Before bench pressing, you might include arm circles, arm swings, and light shoulder movements.

Keep this stage short and specific to your needs.

You don’t have to perform every mobility drill you see online.

Stage 3: Progressive Pyramid Loading

This is the most important stage for our example.

You begin with a lighter weight, then add weight across successive sets.

At the same time, you generally perform fewer repetitions.

The load goes up. The repetitions come down. The effort stays manageable.

That final point is what separates a useful warm-up from an unnecessarily exhausting one.

3. How the Warm-Up Pyramid Works

Several practical warm-up options can be used depending on how many preparation sets an exercise requires. ^[1]

The percentages below are based on your planned working weight, not your one-repetition maximum.

These are practical templates, not scientifically proven universal percentages.

For an experienced lifter, a heavy squat may justify three or four preparation sets. A lighter biceps curl may need just one—or none if the muscles are already prepared.

What about RPE?

RPE stands for Rating of Perceived Exertion.

On the common resistance-training scale, RPE 10 represents maximal effort, while lower numbers represent easier efforts.

For warm-up sets, I recommend keeping the effort comfortably below your working-set intensity.

You should not be grinding through repetitions, reaching muscular failure, or accumulating substantial fatigue.

Remember: A warm-up set should make you feel increasingly ready—not increasingly exhausted.

4. Practical Examples: From Theory to the Gym

Example A: Barbell Squat — 100 kg Working Weight

Let’s say your workout calls for 3 working sets of 6 reps with 100 kg.

A three-set pyramid might look like this:

The optional empty-bar set is additional to the three-set pyramid.

Notice that the repetitions decrease as the weight gets heavier.

By the time you reach 85 kg, you have experienced a load relatively close to your working weight without performing a demanding set.

If the final preparation set feels tiring, reduce its repetitions rather than trying to finish an arbitrary target.

Example B: Bench Press — 70 kg Working Weight

For a moderate working load, a shorter warm-up may be sufficient.

The weights have been rounded to practical gym increments.

Example C: Machine Chest Press — 50 kg Working Weight

If you have already performed several pressing exercises, your chest, shoulders, and triceps may be well prepared.

One easy set with approximately 30 kg for 6–10 reps may be enough before beginning your 50 kg working sets.

The machine’s displayed load is only a practical reference. Different machines may have different resistance characteristics.

What this means for you: Don’t follow a warm-up formula blindly. Use it to guide your preparation, then adjust it to the exercise and how you’re performing that day.

5. What Does the Science Actually Say?

The evidence supports several useful principles, but it does not establish one perfect warm-up protocol for everyone.

Review 1: Progressive Warm-Ups Can Improve Performance

A 2026 scoping review examined the immediate effects of resistance-training warm-ups on strength performance in strength-trained men. ^[3]

The review included 19 warm-up studies and one re-warm-up study.

It reported improvements in outcomes such as squat or leg-press maximum strength, lifting velocity, and repetition performance under certain loading conditions.

However, results depended on the protocol and performance measure.

What this means for you: Gradually introducing heavier weights can be useful, especially before demanding lifts. But it doesn’t prove that everyone needs four warm-up sets.

Study 2: Higher-Load, Lower-Volume Preparation May Help

A 2024 study involving 15 resistance-trained men compared three warm-up conditions using different loads and repetition counts. ^[6]

The warm-ups used 40%, 60%, or 80% of the participants’ 10-repetition maximum, paired with 15, 10, or 5 repetitions.

The higher-load, lower-repetition condition produced greater total training volume than the other two conditions.

This supports the idea that a relatively challenging but brief preparation set can sometimes be more useful than many lighter repetitions.

But it was a small study measuring immediate performance—not long-term muscle growth.

Study 3: More Warm-Up Sets Aren’t Always Better

A 2025 crossover study involved 29 resistance-trained participants. ^[7]

Researchers compared one specific warm-up set, two specific warm-up sets, and no specific warm-up before Smith-machine bench press and 45-degree leg press workouts performed with approximately 10RM loads.

They found no convincing advantage for the warm-up conditions in the measured training-performance outcomes.

This doesn’t prove that warm-ups are useless. It shows that their benefits depend on the exercise, loading conditions, and the person.

Review 2: Warming Muscles Improves Some Outcomes More Than Others

A 2025 systematic review and meta-analysis included 33 studies involving 921 participants. ^[5]

Increasing muscle temperature improved rapid force production and power-related measures, but it did not reliably increase maximal force production.

In simple terms, warmer muscles may perform certain explosive tasks better, but merely increasing temperature does not guarantee that you’ll lift a heavier maximum weight.

Does Warming Up Prevent Injuries?

This is where I want to be particularly careful.

A 2006 systematic review found that three of five included trials reported reduced injury risk, while two did not. The authors concluded that the evidence was insufficient for a definitive answer. ^[8]

Direct evidence about warm-ups preventing injuries specifically during resistance training remains limited.

That doesn’t mean warming up is pointless. It means we should distinguish a sensible training practice from a scientifically guaranteed injury-prevention method.

My interpretation: Warm up because it helps you prepare and may improve performance—not because a particular five-minute routine makes injury impossible.

6. Warm-Up Pyramids vs. Pyramid Training

These two methods sound similar but serve different purposes.

Warm-Up Pyramid

The goal is preparation.

Example:

• 40 kg × 8 reps — easy

• 60 kg × 5 reps — easy

• 80 kg × 2 reps — controlled

• 100 kg × 6 reps — first real working set

The lighter sets should not create meaningful fatigue.

Ascending Pyramid Training

Here, the pyramid itself contains hard working sets.

An example might be:

• 60 kg × 12 reps

• 70 kg × 10 reps

• 80 kg × 8 reps

Each set is deliberately challenging. As the weight increases, the planned repetitions decrease.

Reverse Pyramid Training

With reverse pyramid training, you begin with the heaviest working set after a suitable warm-up.

An example:

• 80 kg × 8 reps

• 70 kg × 10 reps

• 60 kg × 12 reps

The weight decreases as repetitions increase.

Is Pyramid Training Better for Muscle Growth?

Not necessarily.

A 2023 review evaluating 15 studies concluded that pyramid working-set training was not consistently superior to traditional resistance training for muscular strength or hypertrophy. ^[9]

Similarly, a 2017 randomized study in 32 trained men found comparable improvements in muscle size and strength between crescent-pyramid and traditional protocols when total training volume was matched. ^[10]

Pyramid training can still be an effective way to organize your sets.

But the pyramid shape isn’t a secret muscle-building advantage.

What matters more is your training effort, suitable volume, progressive overload, recovery, and consistency.

7. How Many Warm-Up Sets Do You Really Need?

Here’s the practical approach I use when thinking about an efficient warm-up.

This is a coaching guide, not a validated universal prescription.

A heavier, technically complex exercise usually justifies more preparation. A familiar, lighter isolation exercise generally needs less.

Rest matters too. Brief rests of roughly 30–60 seconds may be enough after very light sets, while the final heavier preparation sets may justify approximately 1–3 minutes or longer.

Treat these as adjustable starting points, not fixed scientific requirements.

8. Common Mistakes That Can Make Your Warm-Up Less Effective

Mistake 1: Doing too many repetitions.
Repeated high-rep warm-up sets can create fatigue before your actual workout.

Mistake 2: Taking warm-up sets close to failure.
Save your hardest efforts for the planned working sets.

Mistake 3: Using the same pyramid for every exercise.
Your first heavy squat and your final lateral raise have very different preparation needs.

Mistake 4: Confusing working-weight percentages with 1RM percentages.
The published 45–65–85% example refers to the planned working weight, not automatically to maximum strength.

Mistake 5: Believing more complicated means more effective.
A warm-up doesn’t need ten mobility drills, several foam rollers, and fifteen minutes of stretching to be productive.

Practical Takeaways

• Start with a little general movement when needed.

• Prepare the movement patterns you’ll be training.

• Use progressive loading before heavy compound exercises.

• Increase the weight while generally decreasing reps.

• Keep preparation sets well away from failure.

• Add or remove warm-up sets according to your experience and performance.

• Don’t confuse a warm-up pyramid with hard pyramid working sets.

9. Prepare Well, Then Put Your Energy Into the Work

A good warm-up is not measured by how tired you feel afterward.

It’s measured by how prepared you feel when the real training begins.

Progressive pyramid loading offers a simple framework: begin lighter, gradually increase the load, and reduce the repetitions so you don’t waste energy.

The scientific evidence suggests that specific warm-ups can improve certain aspects of training performance. But the benefits are not universal, and no particular percentage sequence has been established as optimal for everyone.

The same applies to pyramid working sets: they can build strength and muscle, but they are not automatically better than traditional sets.

Train with intention. Warm up with purpose. Save your hardest work for the sets that matter.

Dobrin Todorov

Frequently Asked Questions

Do warm-up sets count toward muscle-building training volume?

Easy warm-up sets should not normally be counted as your hard working sets. Their primary purpose is preparation.

Should I warm up before every exercise?

Not necessarily with a full pyramid. You may need more preparation before your first heavy compound lift than before later exercises targeting already-warmed muscles.

Is three warm-up sets enough for squats?

For many lifters, yes. But heavier loading, unfamiliar movements, and individual preferences may justify more or fewer sets.

Should I increase the weight and decrease repetitions?

That’s the basic principle of progressive pyramid loading. It lets you approach your working load while limiting unnecessary fatigue.

Is pyramid training better than straight sets?

Current evidence doesn’t establish a consistent muscle-growth advantage when comparable training protocols are used.

Can warm-up sets prevent injury?

They are a sensible preparation strategy, but research does not establish that a specific warm-up routine reliably prevents resistance-training injuries.

Photo: Jelmer Assink / Unsplash.